Sharp LC-55LBU591U User Guide LC 43LBU591U - Page 40

43"/50"/55"/65" UHD LED 2160p Sharp Roku TV Symptom Possible cause Try this... Broadcast TV may be experiencing problems or may not be set up • Try another channel. The station may be experiencing problems. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. Dark, poor, or no picture (screen is lit), but sound is good Cables may not be connected correctly • Make sure that the antenna or cable TV is connected correctly and securely. See Connecting a cable or satellite box on page 19 or Connecting an antenna or cable TV (no box) on page 22. • Make sure that the video cables are connected correctly and securely to your TV. • The video cable(s) you are using may be bad. Try a new set. Picture settings may be incorrect • Adjust the brightness. See the TV brightness option in the Settings menu or Options menu. • Change to a different picture mode. See the Picture mode option in the Options menu or Advanced Picture Settings menu. Picture settings may be • Adjust the contrast, color, and brightness settings. See the TV incorrect brightness option in the Settings menu or the Options menu. Broadcast TV may be No color, dark experiencing problems picture, or color is not correct Cables are not connected correctly • Try another channel. The station may be experiencing problems. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Make sure that the antenna or cable TV is connected correctly and securely. See Connecting a cable or satellite box on page 19 or Connecting an antenna or cable TV (no box) on page 22. • Make sure that the video cables are connected correctly and securely to your TV. • The video cable(s) you are using may be bad. Try a new set. Only snow (noise) appears on the screen Broadcast TV may be experiencing problems or may not be set up Cables may not be connected correctly Picture quality is good on some channels and Broadcast signal may be poor on others. weak Sound is good • Try another channel. The station may be experiencing problems. • If you are trying to watch broadcast TV, make sure that Antenna TV is set up. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Make sure that the antenna or cable TV is connected correctly and securely. See Connecting a cable or satellite box on page 19 or Connecting an antenna or cable TV (no box) on page 22. • If you connect to cable without a set-top box and experience poor picture quality, you may need to install a set-top box to improve signal reception and picture quality. Contact your cable TV provider about upgrading to a set-top box. Cables may not be connected correctly Dotted lines or stripes appear on the screen Broadcast signal may be weak • Make sure that the antenna or cable TV is connected correctly and securely. See Connecting a cable or satellite box on page 19 or Connecting an antenna or cable TV (no box) on page 22. • Make sure that the video cables are connected correctly and securely to your TV. • The video cable(s) you are using may be bad. Try a new set. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Other devices (for example, a surround sound receiver, external speakers, fans, or hair dryers) may be interfering with your TV. Try turning off one device at a time to determine which device is causing interference. After you have determined which device is causing interference, move it further from your TV to eliminate the interference. 40